package com.yupi.yupicturebackend.manager;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.StrUtil;
import com.qcloud.cos.COSClient;
import com.qcloud.cos.exception.CosClientException;
import com.qcloud.cos.model.COSObject;
import com.qcloud.cos.model.GetObjectRequest;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.model.PutObjectResult;
import com.qcloud.cos.model.ciModel.persistence.PicOperations;
import com.yupi.yupicturebackend.config.CosClientConfig;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.io.File;
import java.util.ArrayList;
import java.util.List;

@Component
public class CosManager {

    @Resource
    private CosClientConfig cosClientConfig;

    @Resource
    private COSClient cosClient;

    /**
     * 上传对象
     *
     * @param key  唯一键
     * @param file 文件
     */
    public PutObjectResult putObject(String key, File file) {
        PutObjectRequest putObjectRequest = new PutObjectRequest(cosClientConfig.getBucket(), key,
                file);
        return cosClient.putObject(putObjectRequest);
    }

    /**
     * 下载对象
     *
     * @param key 唯一键
     */
    public COSObject getObject(String key) {
        GetObjectRequest getObjectRequest = new GetObjectRequest(cosClientConfig.getBucket(), key);
        return cosClient.getObject(getObjectRequest);
    }

    /**
     * 上传对象（附带图片信息）
     *
     * @param key  唯一键
     * @param file 文件
     */
    public PutObjectResult putPictureObject(String key, File file) {
        PutObjectRequest putObjectRequest = new PutObjectRequest(cosClientConfig.getBucket(), key,
                file);
        // 对图片进行处理（获取基本信息也被视作为一种图片的处理）
        PicOperations picOperations = new PicOperations();
        // 1 表示返回原图信息
        picOperations.setIsPicInfo(1);
        //  图片处理规则列表
        List<PicOperations.Rule> ruleList = new ArrayList<>();
        // 文件格式转换（压缩文件大小）
        String webKey =FileUtil.mainName(key)+ ".webp";
        PicOperations.Rule rule = new PicOperations.Rule();
        rule.setRule("imageMogr2/format/webp");
        rule.setBucket(cosClientConfig.getBucket());
        rule.setFileId(webKey);
        ruleList.add(rule);
        //图片缩略处理 图片大小大于20kb才会进行缩略处理
        if (file.length()>2*1024){
            PicOperations.Rule thumbnailRule=new PicOperations.Rule();
            thumbnailRule.setRule(String.format("imageMogr2/thumbnail/%dx%d>",128,128));
            String suffix = FileUtil.getSuffix(key);
            if (StrUtil.isBlank(suffix)){
                suffix=".webp";
            }
            thumbnailRule.setFileId(FileUtil.mainName(key)+ "_thumbnail"+ suffix);
            thumbnailRule.setBucket(cosClientConfig.getBucket());
            ruleList.add(thumbnailRule);
        }
        picOperations.setRules(ruleList);
        // 构造处理参数
        putObjectRequest.setPicOperations(picOperations);
        return cosClient.putObject(putObjectRequest);
    }
    /**
     * 删除图片
     * @param key
     */
    public void deleteObject(String key) throws CosClientException {
        cosClient.deleteObject(cosClientConfig.getBucket(), key);
    }
}